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A Mysterious Vale opposite their faces; and the reason of this was that the mountains rose on either side, leaving a sort of depression between them, along which they were going as they held on due east. This was not discouraging, as it showed that the mountain peaks caught the mist, and left the lower ground clear. At the same time, they heard the rush of water beneath their feet without being able to see the stream. The noise indicated a volume much larger than that which they had seen pouring through the ravine, and they conjectured that the sub-glacial river divided into several streams before discharging itself.

"They now passed from the snow to a gravelly soil, devoid of grass. It was a smooth ridge of sandstone, like the bank of a mountain torrent. The glaciers now sloped towards the north-east, whilst some tended towards the east; but right across the glaciers there lay a hollow trough, and in many places along the edge black rocks shot out of the snow. On the north side were lofty and craggy fells, connected by snowdrifts and strips of shale; and the glacier range rose considerably on the north side.

"The party followed the sandstone ridge till it terminated abruptly in a precipice with ledges. Then they climbed a height, and looked about them. On the east of the glaciers they saw distinctly a desert track, not covered with snow, which they conjectured lay in a straight line north of 231